Solutions Quiz 2
Chemical reactions are part and parcel of chemistry. Do you think that you know every little intricate detail? Take the quiz below and find out how much you really know about the subject.
- 1.
A solution of hydrogen peroxide is 30.0% H2O2 by mass and has a density of 1.11 g/cm3. The MOLARITY of the solution is:
- A.
7.94 M
- B.
8.82 M
- C.
9.79 M
- D.
0.980 M
- E.
None of these
Correct Answer
C. 9.79 M -
- 2.
A solution containing 292.0 g of Mg(NO3)2 in 880 g of H2O has a density of 1.108 g/mL. The MOLARITY of the solution is:
- A.
1.86 M
- B.
2.08 M
- C.
2.37 M
- D.
0.332 M
- E.
None of these
Correct Answer
A. 1.86 M -
- 3.
In a 0.1 molar solution of NaCl in water, which one of the following will be closest to 0.1?
- A.
The mole fraction of NaCl
- B.
The mass fraction of NaCl
- C.
The mass percent of NaCl
- D.
The molality of NaCl
- E.
All of these are about 0.1
Correct Answer
D. The molality of NaCl -
- 4.
Calculate the MOLALITY of C2H5OH in water solution which is prepared by mixing 50.0 mL of C5H2OH with 100.0 mL of H2O at 20oC. The density of the C2H5OH is 0.789 g/mL at 20oC.
- A.
0.086 m
- B.
0.094 m
- C.
1.24 m
- D.
8.56 m
- E.
None of these
Correct Answer
D. 8.56 m -
- 5.
What is the MOLALITY of a solution of 50.0 g of propanol (molar mass = 60.1 g/mol) in 152 mL water, if the density of water is 1.0 g/mL?
- A.
5.47 m
- B.
0.00547 m
- C.
0.833 m
- D.
0.183 m
- E.
None of these
Correct Answer
A. 5.47 m -
- 6.
A solution containing 296.6 g of Mg(NO3)2 per liter has a density of 1.114 g/mL. The MOLARITY of the solution is:
- A.
2.000 M
- B.
2.446 M
- C.
6.001 M
- D.
1.805 M
- E.
None of these
Correct Answer
A. 2.000 M -
- 7.
A solution containing 292 g of Mg(NO3)2 per liter has a density of 1.108 g/mL. The MOLALITY of the solution is:
- A.
2.00 m
- B.
2.41 m
- C.
5.50 m
- D.
6.39 m
- E.
None of these
Correct Answer
B. 2.41 m -
- 8.
Calculate the MOLALITY of C2H5OH in a water solution which is prepared by mixing 100.0 mL of C2H5OH with 100.0 mL of H2O at 20oC. The density of the C2H5OH is 0.789 g/mL at 20oC.
- A.
0.082 m
- B.
0.102 m
- C.
1.28 m
- D.
17.1 m
- E.
None of these
Correct Answer
D. 17.1 m -
- 9.
When 100. mL of 0.125 M HCl is diluted to 250. mL, the resulting MOLARITY of the HCl solution is:
- A.
0.625 M
- B.
0.250 M
- C.
0.0500 M
- D.
0.0250 M
- E.
None of these
Correct Answer
C. 0.0500 M -
- 10.
How many milliliters of 18.4 M H2SO4 are needed to prepare 600 mL of 0.10 M H2SO4?
- A.
1.8 mL
- B.
2.7 mL
- C.
3.3 mL
- D.
4.0 mL
- E.
4.6 mL
Correct Answer
C. 3.3 mL -
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Current Version
-
Sep 26, 2017Quiz Edited by
ProProfs Editorial Team -
Oct 23, 2009Quiz Created by
Pszpila
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